Vehicle-tire.



No. 740,069. PATENTBD SEPT. 29. los.

W. o. WORTH. A n

, VEHICLE TIRE.

APPLIoATIoN FILED SEPT. 1a, 1902.

` no MODEL.

'/ .we 0W Iatented September 29, 1533,

PATENT OFFICE.

WILLIAM O. vWORTH, OF CHICAGO, ILLINOIS.

VEHICLE-TIRE.'

\ BECIFICATION forming part of Letters Patent No. 740,069, dated September 29, 1903.

Application led September 18, 1902. Serial No. 123,880. (No model.)

To ail whom twenty concern..-

Be it known that I, WILLIAM O. WORTH, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Vehicle-Tires; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to improvements in vehicle-tires, and particularly to solid, cushion, or resilient tires.

One ofthe objects of my invention is to pro-V vide a means for increasing the tractive force of a tire when used on a soft or slippery roadbed. Y

A further object is to provide means for attaching the tire to the rim which serve to strengthen the same and increase its dura-y bility.

With a view to attaining these and other objects, which will become apparent from the following description, my invention consists in the features of construction and arrangemen thereinaft-er described, and pointed out in the claims.

In the drawings, Figure l is a side eleva: tion of a fragment of a wheel equipped with my improved tire. Fig. 2 is an isometric plan of a section of said tire. Fig. 3is a transverse section on line 3 3 of Fig. 2.

In the drawings, 1 represents the felly of a wheel, and 2 the spokes. i

3 represents the usual metallic rim.

My improved tire comprises a relatively thin base 4 of uniform width and thickness and relatively thick transverse projecting ribs 5, formed integral with lthe exterior face thereof to constitute the tire-tread. The ribs 5 are obliquely disposed relative to the circumferential axis of the tire and may be arranged at any suitable angle or at any suitable distance apart. Itis preferable that the ribs be so arranged that their aggregated peripheral su rfaces present an unbroken or continuous tread to the roadway. The ribs 5 are preferably tapered from their bases t0 their' peripheral surfaces, their inclined confronting faces being indicated atl 6.

For the attachment of the tire reinforcingplates 7 are provided, adapted to lie within the recesses between the ribs or projections Vpresented to the roadway.

5 upon the base 4 and bear at their sides against the inclined sides 6 of the ribs. These plates are provided with apertures to receive suitable retaining-bolts 8 and 9.

S represents bolts extending through the plates, tire, rim, and felly and secured by nuts 10 on the under side of the felly.

9 represents small bolts taking through the plates 7 and the tire-base andthreaded into suitable apertures in the rim 3.

I prefer that only sufficiently long bolts 3 be employed to securely retain the rim 3 in place and that the intermediate plates 7 be secured by short bolts 9, as indicatedin Figi.

The tire vthus described is intended particularly forself-propelling vehicles, and the effect of its structure will be apparent. When the vehicle is running upon a smooth hard surface, the peripheral or tread portions of the ribs only Contact with the street, the diagonal arrangement of the ribs insuring that the tread-face of one or more ribs is always If, however, the vehicle encounters soft, sandy, or snow-covered roads, in which the driving-wheels are apt to slip, the weight of the vehicle causes the tire to sink therein, so that the surfaces 6 of the ribs may resist the slipping tendency and increase the tractive effect of the tire.

The tapered form of the ribs strengthens them at their bases and also tends to prevent the accumulation of the road-bed material in the recesses therebetween.

It will loe apparent that slight changes might be made in the precise embodiment of my invention without departing from the spirit and scope thereof.

Having described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United States, is

1. In a vehicle-tire, a body portion, resilient ribs projecting therefrom to form the tread, and reinforcing-plates coextensive with the space between the ribs, interposed between and bearing against the hase of said ribs.

2. In a vehicle-tire, a body portion, transversely-disposed ribs arranged to form the tread thereof, separated reinforcing-plates arranged between the ribs upon the base, and means'for retaining said plates in position.

3. In a vehicle-tire, a felly, a tire comgral ribs arranged to form the tread, rigid of the ribs, and bolts uniting the plates with reinforcing-plates arranged between the ribs the rim.

to bear upon the base and against the sides In testimony that I claim the foregoing as of the ribs, and bolts taking through the my own I aix my signature in presence of 5 plates, base and felly to unite the same. two Witnesses.

4. In combination with a Wheel a metal rim, a tire comprising a body, trarisversely- WILLIAM O WORTH' disposed ribs arranged to form the tread, re- In presence of inforoing-plates arranged between the ribs FORE BAIN,

1o to bear upon the base and against the sides MARY F. ALLEN. 

